Strainer



April 16, 1929. F. L. HAMMER STRA'INER Filed May 19, 192'? 2Sheets-Sheet l April 15, 1929- F. L. HAMMER LZQQAZ STRAINER Filed May19, 1927 2 Shfsets -5het 2 YPatented Apr. 16, 1929.

UNITED STAT-EsY FORBESTERIL. HAMMER, or BRANFORD, CONNECTICUT; Y

. e STRAINER;

Application iled Hay 19,

This invention relates to an improvement in strainers, and lias'for itsobject 4the production of a'sim'ple and efficient device of the classdescribed constructed with'particular reference to ease voi' assemblyand disassembly. f Y

A Y With this object in view, my'invention con- 'e andfvalve-stem andsistsina Strainer having` certain details of construction andcombination of parts as will ,be hereinafter described and kparticularlyre cited inthe claims. Y

f In the, accompanying drawings:

Fig.v lv is ,a view in .iside-elevation of ya strainer lconstructed inaccordance with my invention;

l Fig. 2is a top or plan View thereof; v Fig. 3 is a view in centralvertical secti on on the line3-3 of Fig. lon an enlarged scale,"k

Fig. 4 is a transverse sectional View onthe line4-4ofFig.3; y 0/ Fig. 5isa corresponding View .on t-heline 5-,5 of Fig.3; I i v yFig. 6 is'adetached view in side elevation of the strainer-unit.; l v Y. F 's anunderside view thereof; Fig; 8 is a detached side view of the Valve Fig.9 is an underside In carrymo Sh'owml lView thereof.,v

employ a cup-,shaped body-member 10 provided at its upper end with anoutwardgages with a threaded bore 15 formed in a. boss 16 upstandingfrom the lower` end of the e body-member 10. Y

Within the body-member 10, near itslowcr end, I form an annular seat 17for the recepf tion of a skeletonized assembly-plate 18 which isprovided with an annular series. of fluidpassages 19 and with `anannular outer positioning-lange 20 and a corresponding innerpositioning-deluge 21, both upstanding from its upper face. Soldered orotherwise secured,

at its lower end, to the outer flange 20 is gauzel cone 22, preferablymade of metal, and inclined upwardand inward from 'the saidV flange 20.At its upper end the cone is soldared or otherwise secured tothe upperend out my invention. "as herein 192'?. serial Np. 192,592.

of a complementary inner` gauze Acone23 also respect to the cone 22 andsoldered or yotherwise secured 'at its lower' e'ndV to the positioninglange 21 aforesaid, asclearly shown v formed lof metal andinclined reversely with i in Fig. 3.; yIn addition yto the passages 19 ef aforesaid,`the plate 18 is also provided with a central bore 24 inwhich is soldered an uplstanding,feed-tube'25, slidably fitting at itsupper endinto a socket 26 formed in a boss 27 depending from theunderface of thecapf,

member 13.

Opening into the socket 26,so as tobefin connection with the interiorofthe'tube25,

vthe cap-member 13 is provided with a vertical cylindrical passage 28intersectingat its upper end a horizontal inlet-passage2'9, whichlatteris'enlarged at its outer end and internally threaded as at 30 forlthe reception of a pipe or other suitablehcon'duit."

At-oneside of the central passage 28 aforesage 31 contracted -at itsupper end as at 32 lfor the reception of a valve 33 formed .with

va conical portion 34',r which latter is formed f said the cap 13isformed with a vertical pas-V y integral with a` valve-stem 35.Thevalve 33 aforesaidS cut away as at 36onan angle with' -respe'ctto its`a-Xis.so as toco-act with vthe passage `32 in .controlling the How 'ofliquid be- .ktween thesame and al horizontal oiitletfpassage 37, whichit intersects and which is located in the cap 13 at a pointdiametrically opposite theiinletpassage 29 aforesaid.

To raise and lowerthe valve 33 in the contracted portion 32 of thepassage 31 for controlling the flow of fluid, the valve-stem 35 is`provided with an enlarged threaded portion 38,7the-threads of whichcofact with an Y kinternally-threaded passage 39 arranged axiallyin linewith the passage 31 and opening at its upper Vend into a vgland-chamber40.

For the purpose of preventing the fluid from leaking upward past thevalve-stein, I`

locate in the said gland-chamber and around the valve-stem 35a mass ofbrous packing 41 clamped between twoA complementary washers 42'bymeansof a helical spring y43 which n encircles the said stem and bears at itslower end against the upper washer 42 and Vat its upper end 'against theupper face of a plug 44j screwed into the extreme upper end ofthegland-chamber 40. VAs shown, the kvalvefstem 35 extendsupward throughthe plug '44, and at its up erend it issquared as at 45 for theapplication of awrench or other suitable tool.

protect the upper end of the valv'eistem, l

from 'accidentally being turned, the same is covered by a domical cap 46which isinternally threaded at its lower end for co-acton with theexternal threads or' a neck 47 upstanding from the cap-member 13asshown.

The fluid. is adapted to enter my improved strainer through theinlet-passage 29,7thence travel downward through the passage 28, tube25, and into the sediment-chamber .48 in the bottoni of the body-member'l0. From this point the fluid flows upward through the passages 19 ofthe assembly-plate 18 and Vout through the oppositely-inclinedWalls ofthe gauze cones 22 and 23, and upward through the passage 3l, past thevalve 36, and ultimately out through the'intersecting, outletpassage 37.

As thus constructed and arranged, my improved strainer may be readilyVand `conveniently taken apart 'for cleaning by `first removing thecoupling-holt lil, Which thereby permits the separation of the capl'from the body-member 10. The strainer-unit, comprising the gaf-Lizecones 22 and 23, assembly-platef18,rand feed-tube Q5, may noiv bereadily liftedlout. of the body-member and cleansed of any foreignmatter adhering to it.

I claim:

l. A strainer comprisinga cup-like bodymember; a cap for the saidbody-member; an inlet and an out-let port formed in the said cap;averti'cal passage also formed in the saidcap in communication with oneof the said ports; a separately-organized strainerunit comprising aperforated assembly-plate positioned above the bottom of the `saidbodymember to forma. fluid-chamber at the bottom thereof, and a gauzeelement upstandingV fromthe ,said assembly-plate, a rverticallyarrangedimperforate tube extending axially through the said gauze elementbetween the vertical passage in the said cap and the said fluid-chamberin the body-member; and a coupling-bolt smaller in diameter than theinternal diameter of the said tube, and eX- inlet and an outlet portformed in the said*l cap; a vertical passage also formed inthe said capin communication with one of the said ports; a separately-organizedstrainer-unit comprising a perforated assembly-plate positioned abovethe bottom 'of the said bodymember to form. a fluid-chamber at thebottom thereof, and a gauze element upstanding from thesaidassembly-plate; a verticallyarranged imperforate tubeV secured to andupto-be unitary therewith and extending axially through ther said gauzeelement between the vertical passage inthe said cap and the saidHuid-chamber in the body-member; and a coupling-bolt smaller' indiameter than the internal diameter of the said tube, and eX- tendingaxially through .the fluid-passage in the cap-member, through theinterior of the said tube and into thebottom .of the said body-memberfor coupling the said cap-member and body-member together.

ln testimony whereof, have'signed this specification.

roaR-EsrERyL. HAMMER.

Vstanding from the said assembly-plate so as

